Seaway Notices

Seaway Notices address issues specific to a given navigation season, and serve to complement the regulations found in the Seaway Handbook. The notices (which take the form of general Seaway notices applicable to the entire St. Lawrence Seaway, and regional notices which may be applicable to the Montreal / Lake Ontario region or to the Welland Canal) are disseminated via e-mail broadcasts to subscribers.

To subscribe free of charge to receive Seaway Notices and / or Radio Messages, click here.

#10 – Increased Flows – Montreal Lake Ontario Section (Revised) (Cancelled 2017/06/13)

May 19, 2017

#9 – Increased Flows – Montreal Lake Ontario Section (Cancelled 2017/05/19)

May 16, 2017

#8 – Maximum Allowable Drafts – Montreal Lake Ontario Section

March 10, 2017

#6 – Tie-Up Service at Lock Approach Walls

March 10, 2017

#5 – Notification Requirement for Use of Lines at HFM Locks

March 10, 2017

#4 – General Notice

March 10, 2017

#3 – Communications

March 10, 2017

#2 – Mooring and Casting off In Locks

March 10, 2017

#1 – Opening of the 2017 Navigation Season and Maximum Allowable Drafts

February 17, 2017

#11 – Closing of the 2016 Navigation Season

November 18, 2016

#10 – Draft Information System (DIS) Correction

November 9, 2016

#9 – Maximum Permissible Draft – Montreal to Lake Ontario and Welland Canal

October 14, 2016

#8 – Tie-Up Service at Lock Approach Walls

June 23, 2016

#7 – Maximum Allowable Drafts – Montreal Lake Ontario Section

March 17, 2016

#6 – Vessels’ Transits with Draft Information System (DIS)

March 10, 2016

#5 – Notification Requirement for Use of Wires at HFM Locks

March 10, 2016

#4 – General Notice

March 10, 2016

#3 – Communications

March 10, 2016

#2 – Mooring and Casting off In Locks

March 10, 2016

#1 – Opening of the 2016 Navigation Season and Maximum Allowable Drafts

February 12, 2016

#13 – Mooring Line Safety

December 15, 2015

#12 – Closing of the 2015 Navigation Season

November 16, 2015

#11 – Pilot Exchange on Vessels from the Inland Fleet

April 10, 2015

#10 – Transit Restrictions at Opening (Draft and Power to Length Ratio)

April 10, 2015

#9 – Maximum Allowable Drafts – Montreal Lake Ontario Section

April 9, 2015

#8 – Tie-Up Service at Lock Approach Walls

March 13, 2015

#7 – Testing the Use of Soft Lines for Mooring in Locks for Ships not Greater than 200 Meters in Overall Length

March 13, 2015

#6 – General Notice

March 13, 2015

#5 – Communications

March 13, 2015

#4 – Mooring and Casting off In Locks

March 13, 2015